Differences between revisions 2 and 14 (spanning 12 versions)

John Conways`s "Game of Life"

This function takes a boolean matrix as argument and returns a boolean matrix with the new generation.

  ∇ nextGeneration←Life currentGeneration
[1] ⍝⍝ Take a matrix of Booleans and returns one
[2]  nextGeneration←↑1 currentGeneration∨.∧3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂currentGeneration
  ∇

See also [http://catpad.net/michael/apl/ Conway's Game of Life in one line of APL]

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-  ⇤ ← Revision 2 as of 2007-01-01 00:08:20 → 
  Size: 343
  Editor: KaiJaeger
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+   ← Revision 14 as of 2007-03-09 08:57:28 → ⇥
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  Editor: StephenTaylor
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-Deletions are marked like this.
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-= FunExamples =
+## page was renamed from FunExamples
= John Conways`s "Game of Life" =
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-[[TableOfContents]]

== Meaning of Life ==

Whatever you specify as right argument to this function:
+This function takes a boolean matrix as argument and returns a boolean matrix with the new generation.
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-MeaningOfLife←{+.×/⍎⊖⍕⊃¨⊂|⌊-*+○⌈∨.∧/>\</×÷!⌽⍉⍉⌹~⍴⍋⍒,⍟?⍳''≡1↑0⍴∊⍵}}}}
+  ∇ nextGeneration←Life currentGeneration
[1] ⍝⍝ Take a matrix of Booleans and returns one
[2]  nextGeneration←↑1 currentGeneration∨.∧3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂currentGeneration
  ∇
}}}
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-...will produce a reasonable answer, regardless which type/lenght/depth/rank it is.
+See also [http://catpad.net/michael/apl/ Conway's Game of Life in one line of APL]

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CategoryShowcases